Physical And Chemical Changes Flashcards
0
Q
Why are chemical changes?
A
Substance that can be observed after it has been changed into a new substance.
1
Q
What are physical properties?
A
Substances that can be observed without having to change the substance.
2
Q
What are some examples of physical changes?
A
Texture, color, odor, solubility, etc.
3
Q
What are some examples of a chemical change?
A
Gas production (bubbles/fizzes), formation of a precipitate, heat or color change.
4
Q
What do chemical reactions do?
A
They form new substances by breaking and making new chemical bonds.
5
Q
All chemical and physical changes involve a change in ________.
A
Energy
